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Anonymous users2024-02-09How to judge the quality of the battery car battery? The method of judging the quality of the tram battery is as follows:1
Judging by the external packaging of the battery: (1) Check whether the outer packaging is damaged or has been opened. (2) Check the appearance of the battery itself, and observe whether there are scratch marks and whether there are rust on the terminals of the positive and negative electrodes.
3) Check whether there is an anti-counterfeiting label on the battery shell, whether the production date is relatively old, whether the manufacturer's relevant information marks are complete, and whether the writing is clear and complete. 2.Detect the advantages and disadvantages of the battery during the trial process - install the battery that has just been fully charged to the electric vehicle, start the power supply of the electric vehicle, suddenly accelerate the electric vehicle during driving, and observe the change of the fuel gauge pointer
1) If the pointer of the fuel gauge falls less than half a bar during acceleration riding, it is judged that the battery is brand new or has good performance. (2) If the pointer of the fuel gauge drops by 1 bar or even 2 bars during accelerated riding, it is judged that the battery is an old battery or of poor quality. (3) If the pointer of the fuel gauge falls by 3 or even 4 bars during the acceleration ride, it is judged that the battery is a product of counterfeit new battery after the repair of the scrapped battery, and the quality is extremely poor.
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Anonymous users2024-02-08There are three ways to judge the quality of a battery car battery:
1.Observe the outer packaging to determine if there are traces of grinding and scratching;
When users buy batteries, they should first look at whether the outer packaging of the electric vehicle battery is damaged or have traces of disassembly, then open the package to see the appearance of the battery, see if there are traces of wear and scratches on the outer surface, and then see whether the positive and negative metal terminals of the battery are rusty, and finally see whether the battery has an anti-counterfeiting logo. If one of them is not satisfied, it is most likely a refurbished battery or a battery of poor quality.
2.Test the discharge of the battery state rock with a detector:
The two most important technical indicators of lead-acid batteries for electric vehicles are energy storage capacity and internal resistance. The storage capacity should be tested by the instrument for 10 years of current discharge. According to the discharge time, a new 20ah battery can be discharged for more than 120 minutes before leaving the factory.
The internal resistance should be tested with an internal resistance meter. When the voltage is and the internal resistance is about 10 mOhm, it is a good battery.
3.Speed up the test and observe the position of the pointer:
Replace the battery with a new one before accelerating. In the process of acceleration, if the pointer is less than half a square of the bridge, it is a new battery. And if the pointer drops more than one or even two notches, it is likely to be a refurbished battery.
When the pointer drops more than three bars, the battery is an inferior battery that is close to obsolescence.
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Anonymous users2024-02-07There are three ways to judge the quality of a battery car battery:
1.Observe the outer packaging to determine whether there are any grinding marks and scratches;
When users buy batteries, they should first look at whether the outer packaging of the electric fiber eggplant is damaged or have traces of disassembly, and then open the package to see the appearance of the battery, see if there are traces of wear and scratches on the outer surface, and then see whether the metal terminals of the positive and negative electrodes of the battery are rusty, and finally see whether the battery has anti-counterfeiting marks. If one of them is not satisfied, it is most likely a refurbished battery or a poor quality battery.
2.Test the discharge of the battery with a detector:
The two most important technical indicators of lead-acid batteries for electric vehicles are storage capacity and internal resistance. The storage capacity should be tested by the instrument for 10 years of current discharge. According to the discharge time, a new 20ah battery can be discharged for more than 120 minutes before leaving the factory.
The internal resistance should be tested by an internal resistance meter. When the voltage is and the internal resistance is about 10 mOhm, it is a good battery.
3.Speed up the test and observe the position of the pointer:
Replace the new battery first, then accelerate the drive, and if the pointer drops less than half a bar during the acceleration process, it is a new battery. And if the pointer drops by more than one or even two, it is likely to be a refurbished battery. And when the pointer drops more than three bars, the battery is an inferior battery that is close to being scrapped.
Dizzy, I didn't ask how long I had a warranty for such an important part of the battery when I bought it, hehe. It should normally be one year. This profiteer is obviously lying to you, how can the manufacturer not have this kind of battery? complained to the Consumer Association, and wanted to expose him, a profiteer, on the Internet. >>>More
1. According to the working characteristics of the battery, reasonable maintenance and use are important for the extension of battery life. The correct use and maintenance of lead-acid batteries is very necessary, and the correct use has a great impact on the capacity and life of the battery, and mastering the correct charging method is the key in the use process. First of all, it is necessary to choose a good charger, and the charger indicators include output voltage, charging current, turning light point, etc. >>>More
Quality and after-sales are simply speechless......Bought less than two days before the noise took to the store and repaired it for a fucking week Said that the chain was tight Something broke Said that it can be ridden normally Just can't pedal (the new national standard I bought with the same function as a bicycle) Isn't this bullshit Even if I don't use it I just bought it and there is a problem, can this be cool The store apologized and sent a pedal I thought it was not a big deal Forget it I didn't expect to ride for two days Then I found that every time I rode two kilometers, the battery suddenly lost power During a ride I was almost hit by an electric car in the back and hit the store directly in the back ** and said that I was going to return the car Since I said: I can't return it and I can't change it I ...... it and then repair it
Members of China Electric Vehicle Alliance: The after-sales batteries of electric vehicles are the original car with batteries, which can be used for more than one year under normal circumstances, but if you use brand-name batteries such as: Tianneng, Chaowei, Shanshui batteries, it will be more than half a year longer than the original car with batteries, but it still needs to be maintained. >>>More
Problem 1: The method of repairing the battery of an electric vehicle is as follows: >>>More